September weather forecastCalna, Romania
September
Weather in September
September, the first month of the autumn in Calna, is also an agreeable month, with an average temperature ranging between max 21.5°C (70.7°F) and min 10°C (50°F).Temperature
September brings a minor decrease, with the average high-temperature reducing from a moderately hot 27.1°C (80.8°F) in August to an agreeable 21.5°C (70.7°F). The average nighttime temperature in Calna lowers to a fresh 10°C (50°F) throughout September.Humidity
In September, the average relative humidity in Calna is 67%.Rainfall
August and September are months with the least rain when the rain falls for 9.3 days and typically aggregates up to 23mm (0.91") of rain.Snowfall
May through September are months without snowfall in Calna.Daylight
In September, the average length of the day is 12h and 34min.On the first day of September in Calna, sunrise is at 06:45 and sunset at 20:05. On the last day of the month, sunrise is at 07:23 and sunset at 19:06 EEST.
Sunshine
In September, the average sunshine is 9.4h.UV index
In Calna, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, the UV index of 4 transforms into the following advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Calna, Romania
- Average high temperature in September: 21.5°C
The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (-0.2°C).
- Average low temperature in September: 10°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).
Average pressure in September
Calna, Romania
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1020.4mbar).
The months with the lowest atmospheric pressure are May and June (1014.1mbar).
Average wind speed in September
Calna, Romania
- Average wind speed in September: 7km/h
The windiest month (with the highest average wind speed) is March (8.7km/h).
The calmest month (with the lowest average wind speed) is August (6.4km/h).
Average humidity in September
Calna, Romania
- Average humidity in September: 67%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Calna, Romania
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is May (88mm).
The driest months (with the least rainfall) are August and September (23mm).
Average rainfall days in September
Calna, Romania
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is May (21.1 days).
The month with the least rainy days is September (9.3 days).
Average snowfall in September
Calna, Romania
- Average snowfall in September: 0mm
The month with the highest snowfall is January (165mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Calna, Romania
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Calna, Romania
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Calna, Romania
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (7.8 days).
Average UV index in September
Calna, Romania
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Calna, Romania
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Calna, Romania
- Average visibility in September: 10km
The months with the highest visibility are August and September (10km).
The month with the lowest visibility is January (7km).





